Ring binder spine



FIG. 1 is an upper perspective view of the ring binder spine showing my design.

FIG. 2 is a side view thereof;

FIG. 3 is an opposite side view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a back view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom view thereof; and

FIG. 8 is another perspective view showing an open position thereof; and,

FIG. 9 is a perspective view thereof showing attachment to a binder piece in broken lines.

The broken lines are presented for illustrative purposes and form no part of the claimed design. 

I claim the ornamental design for a ring binder spine, as shown and described. 